[nostalgia/core/studio] Fix memory leaks

src/nostalgia/core/studio/tilesheeteditor.cpp

@@ -20,7 +20,6 @@
 #include <QSettings>
 #include <QSpinBox>
 #include <QSplitter>
-#include <QStyledItemDelegate>
 #include <QUndoCommand>
 #include <QTableWidget>
 #include <QToolBar>
@@ -55,20 +54,6 @@ struct LabeledSpinner: public QWidget {
 
 };
 
-struct TileSheetEditorColorTableDelegate: public QStyledItemDelegate {
-
-	void paint(QPainter *painter, const QStyleOptionViewItem &opt, const QModelIndex &idx) const {
-		if (idx.column() != 1) {
-			QStyledItemDelegate::paint(painter, opt, idx);
-		} else {
-			auto color = idx.model()->data(idx, Qt::DisplayRole).toString();
-			painter->fillRect(opt.rect, QColor(color));
-		}
-	}
-
-};
-
-
 class UpdateDimensionsCommand: public QUndoCommand {
 	public:
 		enum class Dimension {
@@ -236,6 +221,16 @@ class InsertTileCommand: public QUndoCommand {
 };
 
 
+void TileSheetEditorColorTableDelegate::paint(QPainter *painter, const QStyleOptionViewItem &opt, const QModelIndex &idx) const {
+	if (idx.column() != 1) {
+		QStyledItemDelegate::paint(painter, opt, idx);
+	} else {
+		auto color = idx.model()->data(idx, Qt::DisplayRole).toString();
+		painter->fillRect(opt.rect, QColor(color));
+	}
+}
+
+
 SheetData::SheetData(QUndoStack *undoStack): m_cmdStack(undoStack) {
 }
 
@@ -506,7 +501,7 @@ QWidget *TileSheetEditor::setupColorPicker(QWidget *parent) {
 	auto lyt = new QVBoxLayout(colorPicker);
 	m_colorPicker.palette = new QComboBox(colorPicker);
 	m_colorPicker.colorTable = new QTableWidget(colorPicker);
-	m_colorPicker.colorTable->setItemDelegate(new TileSheetEditorColorTableDelegate);
+	m_colorPicker.colorTable->setItemDelegate(&m_colorTableDelegate);
 	m_colorPicker.colorTable->setColumnCount(2);
 	m_colorPicker.colorTable->setSelectionBehavior(QAbstractItemView::SelectRows);
 	m_colorPicker.colorTable->setSelectionMode(QAbstractItemView::SingleSelection);